Which term describes encryption used to protect data stored by a mobile app on a device?

Which term describes encryption used to protect data stored by a mobile app on a device?

• A. Mobile application encryption
• B. Data in transit
• C. Data at rest
• D. VPN

Answer: (A)

The key idea is protecting data when it is stored on a device. Data at rest refers to information that resides on local storage, such as a mobile phone’s files, databases, and caches. Encrypting this data ensures that if the device is lost or accessed by someone else, the stored information remains unreadable. This is different from data in transit, which is encrypted while moving over networks, and a VPN, which protects data as it travels through a tunnel. The term mobile application encryption may be used informally to describe an app’s own encryption of its local data, but the standard, widely used label for this scenario is data at rest.

The key idea is protecting data when it is stored on a device. Data at rest refers to information that resides on local storage, such as a mobile phone’s files, databases, and caches. Encrypting this data ensures that if the device is lost or accessed by someone else, the stored information remains unreadable. This is different from data in transit, which is encrypted while moving over networks, and a VPN, which protects data as it travels through a tunnel. The term mobile application encryption may be used informally to describe an app’s own encryption of its local data, but the standard, widely used label for this scenario is data at rest.